Unit - 3.1 Turning Effect of Force And Pressure - ICSE STD 8 PHYSICS Questions - Vidyadip

Question types

Unit - 3.1 Turning Effect of Force And Pressure question types

39 questions across 6 question groups — pick any mix to generate a PHYSICS paper with step-by-step answer keys.

39

Questions

6

Question groups

5

Question types

MCQ

[1 Mark Question Answer]

[2 Mark Question Answer]

fill in the blanks.

TRUE / FALSE

Match the following.

Sample Questions

Unit - 3.1 Turning Effect of Force And Pressure questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1MCQ1 Mark

The rear wheel of tank trailor have large number of wheels so that :

A
they can withstand the load of tank
✓
reduce pressure on the road
C
increase pressure on the road
D
all of these

Answer: B.

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Q 2MCQ1 Mark

In order to glide on snow , one must wear :

A
Spiked shoes
B
flat rubber shoes
✓
flat and long skies
D
none of these

Answer: C.

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Q 3MCQ1 Mark

One pascal is the pressure generated by

A
Force of 1 N on 1$m ^2$ ,
✓
Force of 1 Kgf on 1 $m ^2$ ,
C
Force of 1 N on 1000 $cm ^2$ ,
D
Force of 1 N on 1 $cm ^2$

Answer: B.

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Q 4MCQ1 Mark

With the increase in the area of contact of an object, the pressure:

A
Increase
✓
Decrease
C
is not affected
D
none of these

Answer: B.

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Q 5MCQ1 Mark

With the increase in the weight of an object, the pressure :

✓
Increase
B
Decrease
C
is not affected
D
none of these

Answer: A.

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Q 6[1 Mark Question Answer]1 Mark

What is the area of cross-section of a body in $m ^2$ when it exerts a force of 50 N and produces a pressure of 2000 Pa ?

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Q 7[1 Mark Question Answer]1 Mark

What is the magnitude of a force which produces a pressure of 7000 Pa while acting on a surface of area of cross-section 0.25$m ^2$.

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Q 8[1 Mark Question Answer]1 Mark

A force of 16 N acts on an area of 50 $cm ^2$. What is the magnitude of pressure in pascal?

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Q 9[1 Mark Question Answer]1 Mark

Why does a sharp nail easily penetrate wood, but not a blunt nail?

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Q 10[1 Mark Question Answer]1 Mark

Explain the following:Why is one end of drawing board and pin broad are flat, whereas its other end is pointed and sharp?

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Q 11[2 Mark Question Answer]2 Marks

A force of 300 N, while acting on an area A, produces a pressure of 1500 Pa. Calculate the magnitude of F.

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Q 12[2 Mark Question Answer]2 Marks

A force F acts on an area of 600 cm2Hand produces a pressure of 12500 Pa. Calculate the magnitude of F.

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Q 13[2 Mark Question Answer]2 Marks

A force of 200 N while acting on an area of 0.16 m2. What is the magnitude of pressure in pascal?

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Q 14[2 Mark Question Answer]2 Marks

State turning effect of force with example from daily life.

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Q 15fill in the blanks.1 Mark

With the increase in force, the magnitude of pressure on a given area _____________.

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Q 16fill in the blanks.1 Mark

The broad tyres of a tractor _____________ pressure on the soft ground, and hence, prevent it from _____________ in the ground.

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Q 17fill in the blanks.1 Mark

The cutting edge of cutting instruments is sharpened because, by _____________ the area of cross-section, the _____________ increases.

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Q 18fill in the blanks.1 Mark

When a force of one _____________ acts on an area of cross section 1 $m ^2$ , the pressure exerted is said to be one _____________.

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Q 19fill in the blanks.1 Mark

The ratio between the _____________ and _____________ is called pressure.

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Q 20TRUE / FALSE1 Mark

Foundations of high rise building are small.

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Q 21TRUE / FALSE1 Mark

The edge of knife is sharpened to increase the pressure.

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Q 22TRUE / FALSE1 Mark

A blunt nail easily penetrates in wood than sharp nail.

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Q 23TRUE / FALSE1 Mark

The broad side on thumb tack increases the pressure on the thumb.

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Q 24TRUE / FALSE1 Mark

Long skies used by skiers reduce the pressure on snow.

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Q 25Match the following.5 Marks

Column A	Column B
1. Buildings having very wide foundations.	1. Reducing force
2. Tools having very small surface area.	2. Pascal
3. The ratio of thrust (force) and area of cross-section.	3. High rise buildings
4. The unit of pressure in SI system.	4. Pressure
5. Decreasing the pressure exerted by an object, without changing its area of contact.	5. Cutting tools

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